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230299985 = 546059997
BaseRepresentation
bin11011011101000…
…01100101010001
3121001100110012002
431232201211101
5432424044420
634504043345
75464342346
oct1556414521
9531313162
10230299985
11108aa8873
1265163555
13389359a6
142282c7cd
1515342075
hexdba1951

230299985 has 4 divisors (see below), whose sum is σ = 276359988. Its totient is φ = 184239984.

The previous prime is 230299973. The next prime is 230299987. The reversal of 230299985 is 589992032.

230299985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181467841 + 48832144 = 13471^2 + 6988^2 .

It is a cyclic number.

It is not a de Polignac number, because 230299985 - 26 = 230299921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230299987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23029994 + ... + 23030003.

It is an arithmetic number, because the mean of its divisors is an integer number (69089997).

Almost surely, 2230299985 is an apocalyptic number.

It is an amenable number.

230299985 is a deficient number, since it is larger than the sum of its proper divisors (46060003).

230299985 is an equidigital number, since it uses as much as digits as its factorization.

230299985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46060002.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 230299985 is about 15175.6378778620. The cubic root of 230299985 is about 612.9588265508.

The spelling of 230299985 in words is "two hundred thirty million, two hundred ninety-nine thousand, nine hundred eighty-five".

Divisors: 1 5 46059997 230299985